Pattern formation in the vertebrate neural tube: a sonic hedgehog morphogen-regulated transcriptional network

Author:

Dessaud Eric1,McMahon Andrew P.2,Briscoe James1

Affiliation:

1. Developmental Neurobiology, National Institute for Medical Research, The Ridgeway, Mill Hill, London, NW7 1AA, UK.

2. Department of Molecular and Cellular Biology, Harvard University, 16, Divinity Ave., Cambridge, MA 02138, USA.

Abstract

Neuronal subtype specification in the vertebrate neural tube is one of the best-studied examples of embryonic pattern formation. Distinct neuronal subtypes are generated in a precise spatial order from progenitor cells according to their location along the anterior-posterior and dorsal-ventral axes. Underpinning this organization is a complex network of multiple extrinsic and intrinsic factors. This review focuses on the molecular mechanisms and general strategies at play in ventral regions of the forming spinal cord, where sonic hedgehog-based morphogen signaling is a key determinant. We discuss recent advances in our understanding of these events and highlight unresolved questions.

Publisher

The Company of Biologists

Subject

Developmental Biology,Molecular Biology

Reference118 articles.

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